/Engine/Plugins/Runtime/GameplayAbilities/Source/GameplayAbilities/Public/GameplayEffectComponents/ImmunityGameplayEffectComponent.h
We register with the AbilitySystemComponent to try and block any GESpecs we think we should be immune to
bool AllowGameplayEffectApplication ( const [FActiveGameplayEffectsContainer](API\Plugins\GameplayAbilities\FActiveGameplayEffectsContainer) & ActiveGEContainer, const [FGameplayEffectSpec](API\Plugins\GameplayAbilities\FGameplayEffectSpec) & GESpecToConsider, [FActiveGameplayEffectHandle](API\Plugins\GameplayAbilities\FActiveGameplayEffectHandle) ImmunityActiveGE ) const